Rinnai takes tankless water heating one step further with condensing technology that delivers more efficiency than ever before. Enjoy all the same tankless benefits you’ve come to expect from Rinnai, plus even greater energy savings. With four condensing models to choose from, there’s one right for any sized home. Delight in a continuous supply of fresh, clean hot water, and experience the space savings, convenience, ease of installation and peace of mind for which Rinnai is famous.

Unrivaled Technology. Unmatched Performance.

Rinnai’s unique condensing design incorporates two innovative heat exchangers to achieve optimum heating value from every cubic foot of natural gas or propane. Residual heat from flue gases is recaptured to pre-heat incoming ground water, which then circulates to the primary copper heat exchanger. The top-down burner design increases reliability and ensures a longer service life, while also reducing lifetime operating and maintenance costs. With the burner located above the condensing heat exchanger, the burner and copper heat exchanger are protected from condensate. Delivering an Energy Factor (EF) up to .96, Rinnai’s tankless condensing units are ideal for residential and commercial applications and can be banked together for even greater capacity.

FEATURES OF THE NEW RINNAI RU98i SERIES TANKLESS WATER HEATERS:

Built-in Circ-Logic recirculation program cycles an external pump (purchases separately) at pre-set intervals and temperatures to maximize efficiency and comfort

12-Year Warranty on Heat Exchanger, 5 Year Parts, 1 Year Labor for Residential Installations. Click Here for more Information.

NOTICE: Rinnai Water Heaters must be installed by a licensed professional. Click Here to find an authorized installer in your area. Rinnai may not warranty the unit if the unit is installed incorrectly.

VENTING REQUIREMENTS:

This water heater is a direct vent water heater and therefore is certified and listed with the vent system.

You must use vent components that are certified and listed with the water heater model.

Do not combine vent components from different manufacturers.

Rinnai's warranty does not cover any failures or operating difficulties due to improper instatllation which includes the use of improper venting materials